2138568312

Names of 2138568312

• Cardinal: 2138568312 can be written as Two billion, one hundred thirty-eight million, five hundred sixty-eight thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.138568312 × 10⁹

Factors of 2138568312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 54156

Divisors of 2138568312

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 17 24 34 51 68 97 102 136 194 204 291 388 408 582 776 1164 1649 2328 3298 4947 6596 9894 13192 19788 39576 54037 108074 162111 216148 324222 432296 648444 918629 1296888 1837258 2755887 3674516 5241589 5511774 7349032 10483178 11023548 15724767 20966356 22047096 31449534 41932712 62899068 89107013 125798136 178214026 267321039 356428052 534642078 712856104 1069284156 2138568312
• Sum of all divisors σ(n): 5719381920
• Sum of proper divisors (its aliquot sum) s(n): 3580813608
• 2138568312 is an abundant number, because the sum of its proper divisors (3580813608) is greater than itself. Its abundance is 1442245296

Bases of 2138568312

• Binary: 1111111011101111111011001111000₂
• Hexadecimal: 0x7F77F678
• Base-36: ZD8XVC

Squares and roots of 2138568312

• 2138568312 squared (2138568312²) is 4573474425090529344
• 2138568312 cubed (2138568312³) is 9780687481241023786384547328
• The square root of 2138568312 is 46244.6571184177
• The cube root of 2138568312 is 1288.3713019121

Scales and comparisons

• 2,138,568,312 seconds is equal to 67 years, 51 weeks, 6 days, 22 hours, 45 minutes, 12 seconds.
• To count from 1 to 2,138,568,312 would take you about one hundred thirty-five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 2138568312 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138568312

• 2138568312 backwards is 2138658312
• The number of decimal digits it has is: 10
• The sum of 2138568312's digits is 39
• More coming soon!